rocsparse_snnz Interface Reference

• hipfort_rocsparse
• rocsparse_snnz

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_snnz Interface Reference

Public Member Functions
integer(kind(rocsparse_status_success)) function	rocsparse_snnz_ (handle, dir, m, n, descr, a, ld, nnz_per_row_columns, nnz_total_dev_host_ptr)
integer(kind(rocsparse_status_success)) function	rocsparse_snnz_rank_0 (handle, dir, m, n, descr, a, ld, nnz_per_row_columns, nnz_total_dev_host_ptr)
integer(kind(rocsparse_status_success)) function	rocsparse_snnz_rank_1 (handle, dir, m, n, descr, a, ld, nnz_per_row_columns, nnz_total_dev_host_ptr)
integer(kind(rocsparse_status_success)) function	rocsparse_snnz_full_rank (handle, dir, m, n, descr, a, ld, nnz_per_row_columns, nnz_total_dev_host_ptr)

Detailed Description

This function computes the number of non-zero elements per row or column and the total number of non-zero elements in a dense matrix.

Note

The routine supports asynchronous execution if the pointer mode is set to device.

This routine does not support execution in a hipGraph context.

Parameters

[in]	handle	- handle to the rocSPARSE library context queue.
[in]	dir	- direction that specifies whether to count non-zero elements by rocsparse_direction_row or by rocsparse_direction_column.
[in]	m	- number of rows of the dense matrix A.
[in]	n	- number of columns of the dense matrix A.
[in]	descr	- the descriptor of the dense matrix A.
[in]	A	- array of dimensions (ld, n).
[in]	ld	- leading dimension of dense array A.
[out]	nnz_per_row_columns	- array of size m or n containing the number of non-zero elements per row or column, respectively.
[out]	nnz_total_dev_host_ptr	- total number of non-zero elements in device or host memory.

Return values

rocsparse_status_success	the operation completed successfully.
rocsparse_status_invalid_handle	the library context was not initialized.
rocsparse_status_invalid_size	m, n, or ld is invalid.
rocsparse_status_invalid_pointer	A, nnz_per_row_columns, or nnz_total_dev_host_ptr pointer is invalid.

Example

Member Function/Subroutine Documentation

◆ rocsparse_snnz_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_snnz::rocsparse_snnz_	(	type(c_ptr), value	handle,
		integer(kind(rocsparse_direction_row)), value	dir,
		integer(c_int), value	m,
		integer(c_int), value	n,
		type(c_ptr), value	descr,
		type(c_ptr), value	a,
		integer(c_int), value	ld,
		type(c_ptr), value	nnz_per_row_columns,
		integer(c_int)	nnz_total_dev_host_ptr
	)

◆ rocsparse_snnz_full_rank()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_snnz::rocsparse_snnz_full_rank	(	type(c_ptr)	handle,
		integer(kind(rocsparse_direction_row))	dir,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	descr,
		real(c_float), dimension(:,:), target	a,
		integer(c_int)	ld,
		integer(c_int), dimension(:), target	nnz_per_row_columns,
		integer(c_int)	nnz_total_dev_host_ptr
	)

◆ rocsparse_snnz_rank_0()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_snnz::rocsparse_snnz_rank_0	(	type(c_ptr)	handle,
		integer(kind(rocsparse_direction_row))	dir,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	descr,
		real(c_float), target	a,
		integer(c_int)	ld,
		integer(c_int), target	nnz_per_row_columns,
		integer(c_int)	nnz_total_dev_host_ptr
	)

◆ rocsparse_snnz_rank_1()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_snnz::rocsparse_snnz_rank_1	(	type(c_ptr)	handle,
		integer(kind(rocsparse_direction_row))	dir,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	descr,
		real(c_float), dimension(:), target	a,
		integer(c_int)	ld,
		integer(c_int), dimension(:), target	nnz_per_row_columns,
		integer(c_int)	nnz_total_dev_host_ptr
	)

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The documentation for this interface was generated from the following file:

• hipfort_rocsparse.F90